Prentke Romich Company
http://www.prentrom.com/support/article/261

Will WiViK work with other non-PRC switch boxes?

WiViK will work with any switch box that emulates a USB joystick.

WiViK will work with any switch box that can emulate the F11and F12 keys on a keyboard.

An electronic version of the full manual can be found at:
http://www.prentrom.com/downloads